Hangzhou Renhal building
materials technical company
Add：487 Ti Yu Chang Road
Hangzhou Chian
Post Code: 310007
Tel: 0086-571-85215295
Fax: 0086-571-85215295
0086-571-85215359
Mob: 13957163071
E-mail: renhal@163.com
Http// www.renhal.com
Mr. Li Chuanchi
Hangzhou Renhal building materials technical company
Hangzhou Renhal building materials technical company is a technical company of Sinoma zhejiang engineering design and research institute company. The institute was set up in 1953. Up to now, it has 50 years history. This institute is the first grade design and research institute reported to State Administration of Building Materials industry, which has the qualified certificates for engineering, project turnkey, as well as engineering supervision etc. All these qualified certificates are issued by Chinese government authorities .
The institute has been engaged in developing and engineering the new building materials, gypsum, cement and ceramics etc. in China for a long time. It has become the first grade design and research institute for extensive research of new building materials in China. Up to now, for gypsum products production lines and related technical service, the institute has undertaken over 20 design projects
The institute pays great attention to the design quality management and has gained the qualified certificate for Total quality control issued by Chinese government authorities. At present, during the process of design, the management is strictly based on the GB/T 19001-ISO9001: 2000 Standard quality system to ensure the project quality. The institute always earnestly executes the contract and is the creditable for all customers.
1. To manage scope
1.1 Gypsum, cement equipment supply
Impact crusher, Grinding mill, Bucket elevator, Screw conveyor, Forcing
mixer,
Gypsum packer, Dust separator, Gypsum continuous calciner, Gypsum
cooler,
Gypsum calcining mill, Gypsum fluidized kiln, Rotary kiln etc.
1.2 Gypsum production line equipment is supplied in sets
1.3 Technical service content
Technology facilities design, Engineering design, Machine manufacture,
Electricity facility manufacture, Machine installation, Adjustment,
Commissioning test running
2. Main gypsum products technology by Renhal company
2.1 Gypsum plasterboard production line
The main raw materials for producing are: stucco plaster, cardboard, fiber,
foam, agent, modified, starch, accelerator, water, glue for edge-adhesion
etc. The raw materials are via mixing, forming, cutting and drying to
become gypsum plasterboard. The gypsum plasterboard will be used as
building partition panels for non-load bearing walls and building ceiling
boards.
The gypsum plasterboard production line with annual capacity of:
2 million m² 4 million m² 6 million m² 8 million m² 10 million m²
12 million m² 15 million m² 20million m² 25 million m² 30 million m²
The specifications of gypsum plasterboard:
Width: 1200 mm
Thickness: 9.5 mm, 12 mm, 15 mm and 18 mm
Length: 2400-3600 mm
2.2 Plaster powder production line
The raw gypsum is calcined and dewatered to convert hemihydrate. After
stabilization, it is used for further processing to gypsum building materials.
The plaster powder production line with annual capacity of:
10, 20, 30, 40 50, 60, 80, 100, 120, 150, 200 thousand tons
2.3 Chemical gypsum process production line
Usually the chemical gypsum is desulphogypsum and phosphogypsum. A
conversion process allows calcinations of chemical gypsum into plaster
powder for further processing into building materials in accordance with i
nternational standards.
For capacities of 10,000 to 200,000 tons / a
2.4 Pneumatic calcinations machine
Saving of energy sources for the calcinations of natural gypsum,
desulphogypsum and phosphogypsum is much important. Pneumatic
calcinations technology is meanwhile process of dispersing, drying and
calcining in nearly vacuum, which was emerged by hot gas. It is the most
advanced calcining equipment in the world.
2.5 High efficiency hot gas generator
The features of the high efficiency hot gas generator are a complete and
stable combustion. It is full automatic operation. It is with electric ignitor
compete and flame detection cell. Natural gas or light diesel oil and coal
powder will be used as
2.6 Wall plaster production line
The gypsum is calcined to β-hemihydrate. It is mixed with chemical agent
to wall plaster. Or one part of the gypsum is calcined to Anhydrite Ⅱ.The
β-hemihydrate and Anhydrite Ⅱ are mixed with chemical agent to
projection plasters. The wall plaster is building stucco materials.
The wall plaster production line with annual capacity of:
20, 30, 40 50, 60, 80, 100, 120, 150, 200 thousand tons
2.7 Plaster building blocks production line
Plaster building blocks or gypsum partition panels are prefabricated
building elements for lightweight, non-load bearing walls. The raw
materials merely comprise water and stucco plaster. Gypsum partition
panels are used in the construction of housing accommodation, schools,
offices, hospitals and hotels.
The plaster building blocks production line with annual capacity of:
100, 150, 200, 250, 300 thousand m²
Standard size:500×666 mm, 3 panels = 1 m²
Panel thickness 6cm 7cm 8cm 10cm
2.8 Gypsum ceiling boards semi-automatic production line
Gypsum ceiling boards are prefabricated boards of gypsum with edge
beading on the reverse side. They can be laid dry. The visible surface of
these boards can be smooth, perforated or profiled. Besides gypsum, the
boards may also contain small amounts of additives which will give them
the required properties, e.g. glass-fibres, insulating material, aluminium foil
etc. These panels are used predominantly for ceiling coverings in
presentation rooms.
For capacities of 100,000 to 650,000 m²/ a
2.9 Cement setting retarder of chemical gypsum production line
Gypsum is an important element in the production of cement and it is
added to the clinker in order to regulate the setting process of the cement.
Gypsum is added to the cement clinker after the cooling stage and before
grinding. It is then ground with the clinker. Normally,
desulphogypsum and phosphogypsum occurs in the form of filter cake with
some free moisture. This product presents some problems for standard
equipment used in the cement industry when wishing to transport, store and
proportion it. There is a danger of caking, incrustating and blockages.
Before chemical gypsum, they must be handled for granulating.
For capacities of 10,000 to 200,000 tons / a
2.10 The alpha high-strength gypsum production line
The alpha gypsum calciner consists of a vertical autoclave heated by
steam followed by an indirect drum drier. Both units run intermittently in
alternating operation.The dihydrate is converted to alpha hemihytrate in the
water vapour atmosphere of the autoclave. Alpha plaster is used primarily
for ceramic moulding material, moulds for rollers, RAM and roof tiles and
for medical purposes.
For capacities of 10,000 to 100,000 tons / a